He he - I'll help you write that book too.

1) Is it your own house etc. etc. (remember other people)
2) Growing your own will pay for the basic set up its self, and yes you will have some good weed - not adulterated in any way.
3) Have patience, it takes time - but when done, besides an overwelming sense of satisfaction, you will still have the lights etc. for another grow (not as much expense for a second grow if you wanted to do another).
4) Tell no one.
5) Good luck

All the best - Hall